Heat the olive oil in a large skillet over medium heat. Add the ground chicken and break it apart with a spoon to ensure even browning. Cook for about 6-8 minutes until golden.
Add the finely chopped onion and minced garlic to the skillet. Sauté for about 2-3 minutes until the onion becomes translucent.
Introduce the chopped bell pepper, dried oregano, smoked paprika, cumin, salt, and pepper. Stir and cook for another 3-4 minutes until the bell pepper softens.
Add the halved cherry tomatoes and sliced Kalamata olives. Mix well and let cook for about 5 minutes until the tomatoes start breaking down.
Sprinkle crumbled feta cheese over the mixture and gently stir to allow it to melt slightly.
Remove from heat, stir in chopped fresh parsley and squeeze in the juice of half a lemon.
Taste and adjust seasoning if necessary. Serve warm on its own or with a low-carb side.